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cervical cancer radiation

Xia Wang, Qing Li, Hua Jin, Hua Zou, Wei Xia, Nan Dai, Xiao-Yan Dai, Dong Wang, Cheng-Xiong Xu, Yi Qing
Previous studies have shown that some dysregulated miRNAs are involved in radioresistance of tumor cells. Here, we identified significantly decreased miR-424 expression in radioresistant cervical cancer cells and specimens from cervical cancer patients with radioresistance compared to their radiosensitive parental cells and specimens from radiosensitive patients, respectively. Ectopic expression of miR-424 significantly increased radiation-induced DNA damage, cell apoptosis and G2/M cell cycle arrest in radioresistant cervical cancer cells...
October 18, 2016: Oncotarget
Lucas Goense, Peter S N van Rossum, Jelle P Ruurda, Marco van Vulpen, Stella Mook, Gert J Meijer, Richard van Hillegersberg
BACKGROUND: Concerns have been raised regarding the toxicity of neoadjuvant chemoradiotherapy (nCRT) for esophageal cancer that could contribute to an increased risk of postoperative complications. The aim of this study was to determine the influence of the radiation dose to the gastric fundus on the risk of postoperative anastomotic leakage in patients undergoing nCRT followed by transthoracic esophagectomy. METHODS: Between January 2012 and July 2015, 97 consecutive patients who underwent nCRT followed by transthoracic esophagectomy were included in this single-center cohort study...
October 17, 2016: Annals of Thoracic Surgery
Takahiro Wakasaki, Hirofumi Omori, Shintaro Sueyoshi, Fumihide Rikimaru, Satoshi Toh, Kenichi Taguchi, Yuichiro Higaki, Masaru Morita, Muneyuki Masuda
BACKGROUND: Advanced head and neck squamous cell carcinomas frequently develop distant metastases to limited organs, including the lungs, bone, mediastinal lymph nodes, brain, and liver. Peritoneal carcinomatosis as an initial distant metastasis from hypopharyngeal squamous cell carcinoma is quite rare. CASE PRESENTATION: A 75-year-old man diagnosed with hypopharyngeal squamous cell carcinoma and his clinical stage was determined as T2N2cM0. Notably, the right retropharyngeal lymph node surrounded more than half of the right internal carotid artery...
October 18, 2016: World Journal of Surgical Oncology
Sadamoto Zenda, Takashi Kojima, Ken Kato, Sachiko Izumi, Taijiro Ozawa, Naomi Kiyota, Chikatoshi Katada, Takahiro Tsushima, Yoshinori Ito, Tetsuo Akimoto, Yasuhisa Hasegawa, Miyuki Kanamaru, Hiroyuki Daiko
PURPOSE: To clarify, in a multicenter, single-arm, phase 2 study (UMIN Clinical Trials Registry no. UMIN000001439), the clinical profile of chemoradiotherapy (CRT) for cervical esophageal cancer. PATIENTS AND METHODS: Patients with operable cervical esophageal cancer, excluding candidates for endoscopic resection, were enrolled. Protocol treatment consisted of CRT and adjuvant chemotherapy (CT). First, patients received concurrent CRT with 5-fluorouracil (5-FU) plus cisplatin (CDDP)...
September 3, 2016: International Journal of Radiation Oncology, Biology, Physics
Eleanor M Osborne, Ann H Klopp, Anuja Jhingran, Larissa A Meyer, Patricia J Eifel
PURPOSE: Treatment for locoregionally advanced cervical cancer has changed dramatically since 2000. In that year, delivery of radiation therapy with concurrent chemotherapy became standard, and in the early 2000s, use of intensity modulated RT (IMRT) and positron emission tomography (PET) became more prevalent. We sought to determine the impact of these changes on disease-specific survival (DSS) and treatment-related adverse effects in patients with cervical cancer with para-aortic lymph node (PAN) metastases treated with definitive extended-field radiation therapy...
September 7, 2016: Practical Radiation Oncology
Linda P Cho, Matthias Manuel, Paul Catalano, Larissa Lee, Antonio L Damato, Robert A Cormack, Ivan Buzurovic, Mandar Bhagwat, Desmond O'Farrell, Phillip M Devlin, Akila N Viswanathan
OBJECTIVE: To determine prognostic factors for progression-free survival (PFS) and overall survival (OS) for stage I-II cervical-cancer patients treated using computed-tomography (CT)-planned high-dose-rate (HDR) intracavitary brachytherapy (BT). METHODS: A total of 150 patients were treated for Stage I-II cervical cancer using CT-planned BT between 4/2004 and 10/2014. Of these, 128 were eligible for inclusion. Kaplan-Meier local control (LC), pelvic control (PC), overall survival (OS), and PFS estimates were calculated...
October 6, 2016: Gynecologic Oncology
Tyler P Robin, Arya Amini, Tracey E Schefter, Kian Behbakht, Christine M Fisher
PURPOSE: Neuroendocrine cervical cancer is a rare malignancy with a poor prognosis, yet there is a paucity of data to guide treatment decisions when managing patients with this diagnosis. Specifically, there are little data to aid practitioners in deciding if there is added value to brachytherapy given the additional time, cost, discomfort, and toxicity to patients. METHODS AND MATERIALS: We used the National Cancer Data Base to identify women with locally advanced neuroendocrine cervical cancer treated with definitive chemoradiotherapy to determine if the addition of brachytherapy improves outcomes in this disease...
October 3, 2016: Brachytherapy
Katsushi Takebayashi, Yasuhiro Tsubosa, Tomoyuki Kamijo, Yoshiyuki Iida, Atsushi Imai, Masato Nagaoka, Takashi Kitani, Masahiro Niihara, Eisuke Booka, Ayako Shimada, Masahiro Nakagawa, Tetsuro Onitsuka
BACKGROUND: Total pharyngolaryngectomy and cervical esophagectomy (TPLCE) after chemoradiotherapy remains a challenge because of the high rate of complications and few available data on outcomes and safety. The purpose of this study was to evaluate the clinical significance of salvage TPLCE and to compare treatment outcomes between hypopharyngeal cancer and cervical esophageal cancer. METHODS: Data from 37 consecutive patients who were diagnosed with potentially resectable hypopharyngeal and cervical esophageal cancer after chemoradiotherapy were retrospectively analyzed...
October 6, 2016: Annals of Surgical Oncology
Jen-Yu Cheng, Eng-Yen Huang, Shun-Neng Hsu, Chong-Jong Wang
OBJECTIVE: To compare the dose distributions of intensity-modulated radiotherapy (IMRT) and volumetric-modulated arc therapy (VMAT) using the simultaneous integrated boost (SIB) technique to that of the traditional midline-block (MB) technique for boosting the parametrium in patients with cervical cancer. METHODS: Treatment plans using VMAT or IMRT with the SIB technique (VMAT-SIB and IMRT-SIB) and IMRT followed by the MB technique (IMRT-MB) were generated for each of 10 cervical cancer patients...
October 6, 2016: British Journal of Radiology
Jun Xing, Yijun Luo, Xiaoli Wang, Min Gao, Mingping Sun, Xiuping Ding, Tingyong Fan, Jinming Yu
PURPOSE: Definitive chemoradiation therapy remains the standard of care for patients with localized esophageal carcinoma who choose nonsurgical management. However, there is no consensus regarding delineation of the nodal clinical target volume (CTVn), especially for lower cervical lymph nodes. This study aimed to map the location of metastatic supraclavicular lymph nodes in thoracic esophageal carcinoma patients with supraclavicular node involvement and generate an atlas to delineate the CTVn for elective nodal radiation of esophageal squamous cell carcinoma...
2016: OncoTargets and Therapy
Grant Harmon, Abbie Diak, Steven M Shea, Joseph H Yacoub, William Small, Matthew M Harkenrider
PURPOSE: To evaluate the dosimetric benefits of MRI-based brachytherapy in small and large high-risk clinical target volume (HR-CTV) in cervical cancer. METHODS AND MATERIALS: Twenty-eight fractions obtained from sixteen cervical cancer patients treated with MRI-based high-dose-rate brachytherapy with standard tandem and ovoid applicators were used; original fractions were optimized to HR-CTV D90. Fractions were separated based on the median volume into small and large (HR-CTV <25 cm(3) or >25 cm(3)) lesion groups...
September 29, 2016: Brachytherapy
Yuan-Run Deng, Hui-Ping Jiang, Lan-Fang Wu, Wei Chen, Dan Lin, Sui-Qun Guo
OBJECTIVE: To investigate the role of specificity protein 1 (Sp1) in regulating radiosensitivity of cervical cancer cell lines. METHODS: We analyzed Sp1 expression in 6 different cervical cancer cell lines (SiHa, HeLa, Caski, Me180, Ms751, and C33a) using Western blotting and real-time PCR. Clonogenic survival assay and curve fitting were used to assess the changes in radiosensitivity of Me180 cells transfected with lentivirus-mediated shRNA vector targeting sp1 and HeLa cells transfected with sp1 over-expression vector...
August 20, 2016: Nan Fang Yi Ke da Xue Xue Bao, Journal of Southern Medical University
Christine H Feng, Yasmin Hasan, Malgorzata Kopec, Hania A Al-Hallaq
We performed a dosimetric comparison of sequential IMRT (sIMRT) and simul-taneously integrated boost (SIB) IMRT to boost PET-avid lymph nodes while concurrently treating pelvic targets to determine the potential of SIB IMRT to reduce overall treatment duration in locally advanced cervical cancer. Ten patients receiving definitive radiation therapy were identified retrospectively. RTOG consensus guidelines were followed to delineate the clinical target volume and organs at risk (OAR), which were then expanded per IMRT consortium guidelines to yield the planning target volume (PTV)...
2016: Journal of Applied Clinical Medical Physics
Boram Lee, Sung Hwan Ahn, Hyeyoung Kim, Jaeman Son, Jiwon Sung, Youngyih Han, Seung Jae Huh, Jin Sung Kim, Dong Wook Kim, Myonggeun Yoon
This study was designed to estimate radiation-induced secondary cancer risks from high-dose-rate (HDR) brachytherapy and external radiotherapy for patients with cervical cancer based on measurements of doses absorbed by various organs. Organ doses from HDR brachytherapy and external radiotherapy were measured using glass rod dosimeters. Doses to out-of-field organs were measured at various loca-tions inside an anthropomorphic phantom. Brachytherapy-associated organ doses were measured using a specialized phantom that enabled applicator insertion, with the pelvis portion of the existing anthropomorphic phantom replaced by this new phantom...
2016: Journal of Applied Clinical Medical Physics
N Li, S S Noticewala, C W Williamson, H Shen, I Sirak, R R Tarnawski, U M Mahantshetty, K L Moore, L K Mell
No abstract text is available yet for this article.
October 1, 2016: International Journal of Radiation Oncology, Biology, Physics
R Singh, S Chopra, R Engineer, S Kannan, S N Paul, S Mohanty, J Swamidas, U M Mahantshetty, J Ghosh, A Maheshwari, R Kerkar, S Gupta, S K Shrivastava
No abstract text is available yet for this article.
October 1, 2016: International Journal of Radiation Oncology, Biology, Physics
B De, R Rhome, M Buckstein
No abstract text is available yet for this article.
October 1, 2016: International Journal of Radiation Oncology, Biology, Physics
L K Mell, C C Saenz, C M Yashar, M T McHale, J P Einck, M E Wright, S S Noticewala, R Xu, S C Plaxe, A J Mundt
No abstract text is available yet for this article.
October 1, 2016: International Journal of Radiation Oncology, Biology, Physics
D Rodin, T P Hanna, E Burger, E Zubizarreta, M L Yap, M B Barton, R Atun, F Knaul, J Van Dyk, Y Lievens, M Gospodarowicz, D A Jaffray, M Milosevic
No abstract text is available yet for this article.
October 1, 2016: International Journal of Radiation Oncology, Biology, Physics
L K Mell, I Sirak, L Wei, R R Tarnawski, U M Mahantshetty, C M Yashar, M T McHale, M E Wright, J Pritz, W Straube, R Xu, L Kasaova, J M Michalski, W R Bosch, D S Followill, J K Schwarz, G Honerkamp-Smith, J L Leif, C C Saenz, J P Einck, P P Koonings, T A Harrison, C Khorprasert, M Shi, S C Plaxe, A J Mundt
No abstract text is available yet for this article.
October 1, 2016: International Journal of Radiation Oncology, Biology, Physics
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